I have a 2002 F150 4/4 automatic. When driving down the road my gauges all of them will start flipping up and down then go dead completely. After about 10-20 miles up the road they return to normal.

Asked by Apr 12, 2016 at 01:46 PM about the 2002 Ford F-150 XLT Crew Cab SB

Question type: General

2 Answers

5,305

sounds to me like the chassis ground is faulty~...see if you can jiggle wires and make that happen...would suggest use a wirebrush and pair of pliers to clean off the battery posts....and the attatchment point of the Black to the chassis...and the Black to the motor as well~ you should be okay then...just Weak ground is the problem...I do believe~!

235

Main ground is bad or battery has low voltage due to the same...Clean the terminals and clean the surfaces where the negative lead is grounded. Check your voltage at the battery, when running, and then check it at rest. Make sure that alternator is properly (clean and secure) connected and charging at 14v. You are likely to find your gremlin among those checks. Consider replacing that battery if the alternator is properly charging and the grounds are all good. You CAN DO IT!

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